Nicunom 1000 Pcs Packing List Envelopes Review: Peel, Stick, and Ship Faster

If you’re shipping orders and still taping packing slips to your boxes with clear packing tape, the Nicunom Packing List Envelopes are built to save you time and a few lost invoices along the way.

These are clear, self-adhesive packing list envelopes sold as a 1000-pack, and I put them through a hands-on test for this video review. Each one measures 4.5” x 5.5” on the outside, is made from LDPE plastic, and is top loading, so the opening runs along the top edge. On Amazon the official listing is a mouthful — the Nicunom 1000 Pcs Packing List Envelopes 4.5” x 5.5”, Clear Adhesive Invoice Packing Slip Envelope Pouches Shipping Label Sleeves Top Loading Packing List Enclosed Bags for Mailing.

I stuck them on cardboard and rough lumber, folded real packing lists into them, and checked how well the clear film protects the contents. The short version: for the roughly $26.99 asking price on Amazon, these do the same job as name-brand pouches for less. There’s one thing about the adhesive that surprised me, and I’ll get to it below.

What I Liked

Strong Adhesive That Grips Rough Surfaces

The adhesive is the part that surprised me most. It’s strong enough to hold on rough surfaces, not just smooth cardboard — I pressed one onto a piece of lumber and it stayed put. On a normal shipping box, this envelope is not coming off in transit, which is exactly what you want holding a packing slip secure.

Waterproof, Scan-Through Clear Film

The LDPE film is waterproof and completely clear. That means your paperwork is sealed off from rain, snow, and the general grime a package picks up in handling, so the invoice arrives readable instead of smeared. Because the face is clear, barcodes can be scanned right through it, and carriers or warehouse scanners read the label inside the pouch without anyone opening anything.

Fast Peel-and-Stick Application

You peel off the paper backing and stick the envelope down — no cutting, no tape, no wrestling with a tape gun. This turns labeling a package into a two-second job instead of a fiddly one, and the slip stays secure once the top flap folds over. One Amazon reviewer summed it up: “These stick very well, easy to remove backing and don’t wrinkle as easily as some others do.”

Tear-Resistant Yet Space-Saving

For how thin the film is, each envelope is sturdier than you’d expect and doesn’t tear or rip easily. That matters because the pouch has to survive the whole trip while it protects the slip inside. The full 1000-pack also takes up far less room than you’d think, so a lifetime supply stores easily on a shelf.

Low Cost Per Envelope in the 1000-Pack

At around $26.99 for 1,000 envelopes on Amazon, the cost per pouch is tiny. You get the same clear, waterproof, self-adhesive function as pouches from the big shipping-supply companies, just at a more budget-friendly price. These packing slip envelopes are the kind of supply you reorder without thinking about it.

What Needs Improvement

Small Interior Means Folding the Slip

The 4.5” x 5.5” outer size leaves only about 4” x 5” of usable space inside. A full letter-size packing slip does not drop straight in — you fold a standard sheet twice, down to a quarter page, before it slides in. It works and the fit is snug, but it’s an extra step on every order.

Not for Documents You Cannot Fold

If you need to attach a flat sheet that can’t be folded, such as certain customs forms, this size isn’t the one. There’s simply no room for an unfolded page in a 4.5” x 5.5” pouch. For those jobs you’ll want to size up to a larger envelope instead.

Aggressive Adhesive Resists Repositioning

The same adhesive that refuses to peel off in transit is genuinely hard to reposition once it’s down. In my testing I had to work at it to lift a pouch back off cardboard, and the surface was reluctant to let go. Line up your placement before you press, because a second try is a chore.

How It Compares

7.5” x 5.5” Top-Loading Pouches (1000 ct)

If the folding step bothers you, a larger 7.5” x 5.5” clear adhesive top-loading pouch gives you roughly a 7” x 5” interior, so a letter sheet only needs one fold instead of two. You give up a little shelf space and usually pay a bit more per 1000-count box. For high-volume shippers who hate quarter-folding, that trade can be worth it.

USPACKSMART 4.5” x 5.5” (1000 units)

USPACKSMART sells the same 4.5” x 5.5” size in a 1000-unit box, also marketed as fully waterproof and tear-proof. On paper it matches the Nicunom envelopes feature for feature, so the choice usually comes down to price per pack on the day you order. Other budget brands such as PSBM and Anobell list near-identical clear pouches, so I’d buy whichever is cheaper per unit at checkout.

EnvyPak Made-in-USA Pouches

EnvyPak positions its clear packing list envelopes as premium, 4.5-mil, waterproof, and made in the USA. The film is thicker and the price is higher than budget import pouches like these. If domestic sourcing or heavier-gauge film matters to your operation, EnvyPak is the upgrade; for most sellers, the Nicunom pack covers the same need for less.

Final Verdict

The Nicunom Packing List Envelopes earn a 4.6 out of 5 from me. They nail the core job: a strong, waterproof, self-adhesive pouch that keeps a packing slip readable and firmly stuck to almost any package, at a cost per envelope that’s hard to argue with.

The only real catch is the size. You’ll fold a standard slip twice to fit, and these won’t hold an unfoldable document, so heavy-paperwork shippers should size up.

For the typical Etsy shop, eBay store, or small warehouse, though, this 1000-pack is a supply you’ll reorder without thinking. It does what the pricier name brands do and protects your slips just as well, for less money.